摘要
分析了房柱采空区下长壁开采顶板结构,认为房柱式采空区上部覆岩层基本顶在一定的采高范围内存在"叠合梁"结构,建立了支护强度理论分析模型,与数值结合进一步确定了鄂尔多斯凯达煤矿1603中房柱式采空下长壁综采工作面合理支护强度,开采实践验证了该方法的合理性。
This paper analyzed roof structure of long-wall mining under room-and-pillar gob.It was believed that there was superposed beam structure in basic roof over room-and-pillar gob.Theoretical model of supporting intensity was set up .Combining with it , rational supporting intensity of 1603 mining face, Kaida Colliery was determined with numerical simulation .Mining practice proved the rationality of this method.
出处
《煤矿开采》
北大核心
2014年第4期108-111,共4页
Coal Mining Technology
基金
国家自然科学青年基金资助项目(51304115)
国家"十二五"科技支撑计划项目(2012BAK04B08)
天地科技"公司研发项目"(KJ-2013-TDKC-03)
关键词
房柱式采空区
长壁开采
支护强度
顶板结构
room-and-pillar gob
long-wall mining
supporting intensity
roof structure
